<block name="header"></block>
<div id='load'>
<div class="square-spin">
	<div></div>
</div>
</div>
<div id="main-container">
        <block name="body"></block>
</div>

<script type="text/javascript">
    $(function(){
        $(window).resize(function(){
            $("#main-container").css("marginTop", $('.navbar').height());
            // $("#main-container").css("min-height", $(window).height() -$('.footer').height());
        }).resize();
    })
</script>